Lift for gin breasts



Oct. 23, 1923.

C. R. P. POOL LIFT FOR GIN BREASTS Filed Feb. 16 1923 2 Sheets-Sheet 1 C. R. P. POOL LIFT FOR GIN BREASTS Filed Feb. 16, 1923 2 Sheets-Sheet 2 and useful Improvements in Lifts for Gin cation.

Patented Get. 23,1923.

'oHAaLns as. POOL, on nALLas, Texas.

LIFT FOR GIN Banners.

Application filed February 16, 1923. Serial No. 619,538.

To aZZ whoa/t it may concern:

Be it known that I, CHARLES R. P. PooL, citizen of theUnited States of America, residing at Dallas, in thecounty of Dallas and State of Texas, have invented certain new Breasts, of which the following is a specifi- This invention relates to new anduseful improvements in lifts for gin breasts.

Theinvention has to do with certain improvements and additions to my invention covered by Letters Patent No. 1,380,677, issued June 7th, 1921.

A particular object of the invention is to provide means for latching the lifting lever, whereby the breastmay be held in its liftel position and the lever released from the hand of the operator. Such an arrangement prevents falling of the breast and gives a positive look, so that the breast cannot be accidentally displaced, when lifted.

An advantage of the improvement is that no dependence is placed upon the position of the lifting arm or the lug engaged by the same, as in my former patent and thus the manufacture may be simplified and a betterarrangement had.

A construction designed to carry out the invention together with other novel features will be hereinafter described. I

The invention will be more readily understood from a readingof the following specification and by reference-to the accompanying drawings, in which an example of the inventionis shown and wherein:

Fig. 1 is an end elevation of a portion of a gin stand showing the breast closed orlowered and an attachment embodying my invention applied thereto.

Fig. 2 is a transverse sectional view show ing the gin breast raised,".

vFig. 3 is a detail of the rock component parts, ,9

Fig. 4: is a cross-sectional detail on the line 4-4: of Fig. 3, r

Fig. 5 is a detail of the wear plate which is attached to the bottom of the breast, and Fig. 6 is a detail of the arm and stop lug. In the drawings the numeral 10 designates oneof the end frames of a gin stand. The breast 11 is hinged to the stand at 12 and is constructed in the usual way and provided with a lower rib bar 18, the rest bar 14 and the usual sill 15. These parts are found in and 'wardly and carries a handle the ordinary gin construction and form no part of my invention. a

In carrying out the invention a longitudinal rock shaft 16 is provided and has one end supported in a bearing box 17 depending .from'the end frame 10,-while its oppo site end is supported in abearing member or hanger. 18 attached to the sill 15 at the cen-. tral portion of the gin stand. The outer end of the rock shaft is preferably square in cross section and receives anarm l9 which is fastened thereon and projects upwardly on the outside of the frame 10 as is shown in Figs. 1 and 3. g .Y

The upper end of the arm .is pivoted to the rear end of a link 20 which extends forward and is pivoted to the lower end ofan operating lever 21. The lever 21 is pivoted on a bracket 22 which latter is fastened to the end frame 10. The lever 21 is bent-rear 23 at its upper end. Bygrasping the handle and pulling the lever forward the link 20 is pushed rearwardly and the arm 19 thus "swung rear wardly, whereby the rock shaft 16 is rocked.

The lever is pivoted on the bracket concen-. trically to a toothed segment 30 and carries a dog 31 pivoted above the segment so asto engage the teeth when the lever is pulled forwardly. A grip 33 is pivoted tothe lever at the handle and is connected to the. upper end of a'rod 32 which has its lower end pivoted in an eye on top of-the dog. B squeezing the grip toward handle 23 the rod is raised whereby the dog is lifted to free it from the teeth of the segment. By this Ell? I'an gement the'lever may be latched in its forward position; v

The inner endof the shaft 16 project beyond the bearing member 18 and carries an arm 24:, whichit will be noted normally pro.- jects downwardly from the shaft'16. A pit- ,man or'lifting rod 25has its rear end piv- 16 is rocked and thus the arm 24 is swung upwardly whereby the rod 25 ispushedforoutwardly as is shown in Fig. 2. It will be seen that the arm at is swung upwardly P until its pivotal connection with the rod 25 is above a straight line running from the shaft 16 to thesocket 27 and so long as the parts remain in this position the breast cannot be lowered or fall. When the breast is thus elevated thedog 31 will be in engagement'with the teeth of the segment 30 and the lever 21 will be pulled forwardly.

By grasping the handle 23 and pulling the lever forwardly the breast is elevated, the dog riding over the teeth segment 30- and catching therein when the lever is brought to rest and the breast fully opened. By grasping the grip 33 and the handle 23 and squeezing the former against the latter, the

dog is raised from the segment and the lever swung rearwardly, whereby the breast is lowered. The latching means is positive and does not depend upon the joint between the arm 24 and the rod 25 to maintain the breast in its lifted position. The lever has suflicient length above its pivot to provide ample leverage to enable the breast to be easily handled.

To limit the upward movement of the arm 24: a lug 29 is cast on each side of the same as is shown in Fig. 6. This lug engages a stop 29 on the member 18 and thus limits said upward movement. By casting the lug 29 on each side of the arm, the latter is reversible so that the attachment may be applied to either end of the gin.

Various changes in the size and shape of the parts as well as modifications within the scope of the appended claims, may be made.

What I claim, is:

1. In a gin breast lifting attachment,- a rock shaft, means for supporting said rock shaft on a gin frame, a lever, means for fastening said lever in a forward position, a rocking connection between the shaft and the lever, means for mounting the lever on the gin stand, a lifting rod adapted to engage the breast of a gin, and means carried on the rock shaft for displacing the rod to lift the breast when the shaft is rocked.

2. In a gin breast lifting attachment, a rock shaft, means for supporting said rock shaft on a gin frame, a lever, a rocking connection between the shaft and the lever,

means for mounting the lever on the gin stand, a lifting rod adapted to engage the breast of a gin, means carried on the rock shaft for displacing the rod to lift the breast when the shaft is rocked by swinging the lever, said lifting means being arranged to automatically lock when the breast is raised to prevent lowering of the breast until the parts are swung out of locking position, and means carried by the lever for latching the same in position when the breast is lifted.

3. In a gin breast lifting attachment the combination with a gin stand and the breast thereof, of a rock shaft disposed longitudinally of the stand, an operating lever pivoted at one end of the stand, a rocking connection between the lever and the shaft, a lifting rod engaging the breast, means carried by the rock shaft and connected with the rod for displacing the same to lift the breast, and means carried by the lever for locking the same in position when the breast is lifted.

4. In a gin breast lifting device, the combination with a gin stand, of a rock shaft mounted on said stand, an operating lever pivoted on said stand, a locking segment mounted concentrically to the pivot of the lever, a dog mounted on the lever to engage the segment and fasten the lever in adjusted positions, means on the lever for lifting the dog from engagement with the segment, an arm connected with the rock shaft, a link connecting the lever and the arm, a swinging element fastened on the rock shaft, and a lifting member pivoted to the swinging element and engaging the breast for lifting the same.

5. In a gin breast lifting device, a rock shaft, means for supporting the shaft on a gin frame, an arm fastened to one end of the shaft, a bracket for engagement with the end frame of a gin stand, a toothed segment on the bracket, a lever pivoted on the bracket, a dog pivoted on the lever and engaging the segment, a grip pivoted on the lever and connected with the dog for lifting the same, means connected with and operated by the shaft for lifting a gin breast when the lever is swung to rock the shaft, and a connection between the lever and the arm.

In testimony whereof I afiix my signature.

orianrns n. P. POOL. 

